Free Drill Size for Pipe GrafNCalc83 Programs

In case you're just finding MachinistKalc.com, I want to let you know that you will, first, need to download the GrafNCalc83 calculator app onto your iPhone in order to use my programs from this website. I'm not affiliated with this app or the creator in any way. It's simply a great app that I use to double check my own calculations as a machinist. Woodworkers and hobbyists will likely find many of these calculator programs helpful as well. 

Since my iPhone is always with me, it's easier to use this app than it is to carry a TI83 calculator around or a Machinery's Handbook. I thoroughly check these programs before releasing them. However, I want to stress that these are to be used for double checking your own calculations and not as your main source of calculating. Please see my disclaimer page for more information. 

In this free package, you'll receive the NPT (National Pipe Taper), NPS (National Pipe Straight), and BSPP/BSPT (British Standard Parallel Pipe/British Standard Pipe Thread) calculator programs to calculate drill sizes. See image below for an example of each. Just click on the picture to enlarge it. Another helpful page shows you how to import the programs and the basic settings I use for my programs.

To get these free programs, simply contact me with your First Name and Email Address for me to email these programs to you. The email address must be accessible from your iPhone so you can import the program into the GrafNCalc83 calculator on your iPhone. You will receive the programs within 48 hours. You can find all of my affordable programs on the Programs tab at the top of this page - $1.35 each or bundle for savings (5 for $5, 10 for $10, or all 34 paid programs for $25). Thanks for your interest. 

Be sure to check out the GrafNCalc83 app at the Apple Store.